Anime List [O]
Popular Anime List [O]
- Oshi no Ko 409
- ONE PIECE 13135
- Osomatsu-san 18355
- Obey Me! 965
- Ouran High School Host Club 58
- Overlord 629
- Onegai My Melody 75
- Otome Game no Hametsu Flag shika Nai Akuyaku Reijou ni Tensei shiteshimatta... (My Next Life as a Villainess: All Routes Lead to Doom!) 287
- Ore no Nounai Sentakushi ga, Gakuen Love Comedy wo Zenryoku de Jama Shiteiru 51
- Olympia Soiree 89
Anime List [O]
- O.B.
- O.N.G.E.K.I.
- Obake no Q-tarō
- Obey Me!
- Obocchama-kun
- OBSOLETE
- Obungu to Issho
- Occultic;Nine
- Ocha-Ken
- Ochikobore Fruit Tart (Dropout Idol Fruit Tart)
- Ochikobore α to Elite Ω
- OCTOPATH TRAVELER
- Oda Cinnamon Nobunaga
- Oda nobuna no Yabou
- Odayaka Kizoku no Kyuuka no Susume. (A Gentle Noble's Vacation Recommendation)
- ODDTAXI
- ODETTE
- Odin Sphere
- Odoriba ni Skirt ga Naru
- Odoru Hoshi Furu Reneshikuru
- Odoru Omaera to Daimeiwaku
- Odoru Respawn (Dancin' Respawn)
- Odoru Sennen Kazoku
- Offside
- OGA Onigokko Royal
- Ogiwara Ryusei
- Ogre Battle Series
- Ogre Battle: March of the Black Queen
- Oh! Edo Rocket
- Oh! Super Milk-chan
- Ohayou Rakuen-kun (Kari)
- Ohayou to Oyasumi to Sono Ato ni
- Ohenro.
- Ohime-sama Navigation
- OHMEst.GRANDE
- Oishinbo
- Oita ga Sugiruwa Koneko-chan
- Ojamajo Doremi
- Ojipan
- Ojisama Senka
- Ojisama to Neko
- Ojisan wa Kawaii Mono ga Osuki.
- Ojou to Banken-kun
- Ojou-sama Tokkyuu
- Ojou-sama wa Gokigen Naname
- Ojou-sama wa Sunao ni Narenai
- Ojousama wa H ga Osuki
- Okaeri Sonoda Kun
- Okage: Shadow King
- Okami Denka to Migawari No Kuro Neko Koi Tsuma
- Okami kun ga Kawaisugite H Dekinai
- Okamisan and her Seven Companions
- Okamoto Nobuhiko
- Okane ga Nai (No Money!)
- Okashi na Shima no Peter Pan: Sweet Never Land
- Okazari Ouhi ni Natta node, Kossori Hataraki ni Deru Koto ni Shimashita
- Okiayu Ryotaro
- Okiba ga Nai!
- Okobore Hime to Entaku no Kishi
- Okojo to Yamane
- Okosama Star
- Okoshiyasu, Chitose-chan
- Okujou no Yurirei-san
- Okusama ga Seitokaichou!
- Okusama Ha Joshi Kousei
- Okusama Wa Mahou Shoujo
- Okusama wa Niizuma-chan
- OL-san to Neko
- Old-Fashioned Cupcake
- OLDCODEX
- Oletower ~Over Legend Endless Tower~
- Olympia Soiree
- Omae ni Dakareru nante Kiitenai!: Hamatta Otoko wa AV Danyuu
- Omae no Hou ga Kawaii Kuse ni
- Omae no Mae de Naku Mon ka (You will never see my tears!)
- Omae no Toriko ni Narumonka!
- Omae wa Hitsuji.
- Omae wa Mada Gunma wo Shiranai
- Omae wo Otaku ni Shiteyaru kara, Ore wo Riajuu ni Shitekure!
- Omae, Tanuki ni Naranee ka?
- Omaera Zenin Mendokusai!
- Omairi desu yo
- Omamori Himari
- Omega Quintet
- Omega Sisters
- Omega Vampire
- Omerta ~Chinmoku no Okite~
- Omiai Shitakunakatta node, Murinandai na Jouken wo Tsuketara Doukyuusei ga Kita Ken ni Tsuite
- Omochi Alien
- Omoi, Omoware, Furi, Furare
- Omoichigai ga Koi no Tane
- Omoide Kakaete Ai ni Koi!!
- Omoide no Marnie
- Omoide Poroporo (Only Yesterday)
- Omori
- Omoware, Furi, Furare
- ON AIR!
- on-chan
- Onaji Class no Idol-san
- Onaji Yumemita Kimi wa Idol
- Onara Gorou
- ONE PIECE
- One Room
- One Room Angel
- One Week Friends
- One-Loli Cabaret Club
- One-Pound Gospel
- One-Punch Man
- ONE: Kagayaku Kisetsu e
- Onee-chan wa Game wo Suru to Hito ga Kawaru Onee-chan
- Oneechan! Tengoku
- OneeChanbara
- Onegai My Melody
- Onegai Teacher
- Onegai Twins
- Onegai!! One Night Stand
- oneoff
- Ongaku Shoujo
- Oni Bengoshi wa Nigasanai!
- Oni Joushi Gokudera-san wa Abakaretai.
- Oni to Tengoku
- Oni Uta.
- Onigiri
- Onigokko!
- Onihei
- Onii-chan wa Oshimai! (Onimai: I'm Now Your Sister!)
- Onii-chan, Asa Made Zutto Gyu te Shite!
- Onii-chan, Kiss no Junbi wa Mada Desu ka?
- Onii-chan, Migite no Shiyou o Kinshi Shimasu!
- Oniichan dakedo Ai sae areba Kankei nai yone
- Onikagura
- Onimusha
- Onipan!
- Onitama
- Oniwaban Mochizuki Soushirou Mairu!
- Online Game Nakama to Sashi Off shitara Shokuba no Oni Joushi ga Kita
- Only Sense Online
- Onmyoji (Game)
- Onmyoji Genya Roku - Waga Te de Nemure
- Onmyou Taisenki
- Onmyouji
- Onna Doushi toka Arienai desho to Iiharu Onnanoko wo, Hyakunichikan de Tetteiteki ni Otosu Yuri no Ohanashi
- Onna Tomodachi wa Tanomeba Igai to Yarasete Kureru
- Ono Daisuke
- Ono Kensho
- Onsen Musume
- Onsen Yousei Hakone-chan
- Onzoshi wa Aiken-ka to Koi ni Ochiru
- OO-FORMATION
- Ookami
- Ookami Datte Amaetai
- Ookami e no Yomeiri: Ishu Kon'intan
- Ookami Game
- Ookami Kodomo no Ame to Yuki (Wolf Children)
- Ookami no Hanayome
- Ookami no Kawa o Kabutta Hitsujihime
- Ookami Shoujo to Kuro Ouji
- Ookami wa Tantei wo Tabetai (The Werewolf Wants to Eat His Favorite Detective)
- Ookami-heika no Hanayome
- Ookami-kun Chi.
- Ookami-kun wa Kowakunai
- Ookami-san Series
- Ookami-san wa Amayakashitai
- Ookiku Furikabutte (Big Windup!)
- Oomuro-ke
- Oooku (Ooku: The Inner Chambers)
- Ooyasan wa Shishunki!
- Ooyukiumi no Kaina (Kaina of the Great Snow Sea)
- Op8♪
- Opanchu Usagi
- OPERA
- Opus.COLORs
- Orange (Takano Ichigo)
- Ore dake Haireru Kakushi Dungeon
- Ore dake no Senzoku Alpha
- Ore ga Heroine o Tasukesugite Sekai ga Little Mokushiroku!?
- Ore ga Neko nara Omae wa Inu de
- Ore ga Suki nano wa Imouto dakedo Imouto ja Nai
- Ore ni Suru? Boku ni Suru?
- Ore no Boukun wa Te ni Oenai
- Ore no Cupid ga Ponkotsu Sugite Kowa~i.
- Ore no Hanamuko wa Omae Janai
- Ore no Imouto ga Konna ni Eromanga na Wake ga Nai
- Ore no Imouto ga Konna ni Kawaii Wake ga Nai (Oreimo)
- Ore no Itoshii Kaijin R
- Ore no Iu Koto Kikenai no
- Ore no Joushi wa Mate ga Dekinai
- Ore no Kaikata Shikarikata
- Ore no Kanojo no Uraomote
- Ore no Kanojo to Osananajimi ga Shuraba Sugiru
- Ore no Nounai Sentakushi ga, Gakuen Love Comedy wo Zenryoku de Jama Shiteiru
- Ore no Oyomesan, Hentai kamo shirenai
- Ore no Pants ga Hitojichi ni Torareteimasu
- Ore no Seito wa Kawaikunai
- Ore no Shikabane wo Koeteyuke
- Ore no Shita de Agake
- Ore no Sub wo Abaku na
- Ore no Sugata ga, Toumei ni!? Invisible to Suuki na Unmei
- Ore Pri
- Ore sama Residence
- Ore to Ichino no Game Doukoukai Katsudou Nisshi
- Ore wa Seikan Kokka no Akutoku Ryoushu!
- Ore wa Shoujo Mangaka
- Ore wa Tayorikata ga Wakarimasen
- Ore wo Suki nano wa Omae dake ka yo
- Ore, Tsushima
- Ore-sama Kingdom
- Ore-sama no RagnaRock
- Oremonogatari!!
- Orenchi no Furo Jijou
- Orenchi no Furo Jijou (Merman in My Tub)
- Orenchi no Maid-san (Maid-san in My House)
- Oresama Teacher
- Oretachi Majikou Destroy
- Oretachi Namamono? desu (There's Fanfiction About Us?)
- Oretachi ni Tsubasa wa Nai
- Oretachi no Field
- Oretachi wa Shinkon-san kamo Shirenai
- Orfleurs
- Orichalcum Reycal
- ORIENT
- Original
- Original Design Art Series
- Original Entertainment Paradise
- ORIHARA
- Oroka na Tenshi wa Akuma to Odoru
- Orokamono no Ai no Uta
- Oruchuban Ebichu (Ebichu Minds the House)
- ORYO CLASSMATE COLLECTION
- Osaka Ryota
- Osake wa Fuufu ni Natte kara (Love is Like a Cocktail)
- Osama Ranking
- Osananajimi dakedo Seiteki ni Suki desu
- Osananajimi ga Zettai ni Makenai Love Comedy (Osamake: Romcom Where The Childhood Friend Won't Lose)
- Osananajimi ha Okitsune-sama
- Osananajimi ja Gaman Dekinai (I can’t stand being your Childhood Friend)
- Osananajimi to wa Love Comedy ni Naranai
- Osananajimi to, Kiss shitakunakunai.
- Osananajimi wa Daitouryou
- Osanpo wa Kisetsu wo Matotte.
- Osel
- Oshare Majo Love & Berry
- Oshi ga Budoukan Ittekuretara Shinu
- Oshi ga Shinda no de Time Leap shite Seizon Route Kakuho shimasu!
- Oshi no Ko
- Oshi no Love yori Koi no Love
- Oshi no Ninchi Hoshii no? ← Agenai
- Oshi wo Matsuru Kamidana
- Oshiego ni Kyouhaku Sareru no wa Hanzai Desu ka?
- Oshiete! Galko-chan (Please tell me! GALKO-chan)
- Oshikake Twintail
- Oshioki Execute
- Oshiri Tantei
- Oshushi dayo
- Osomatsu-kun
- Osomatsu-san
- Osu! Banchou
- Osuwari, Yoku Dekimashita
- Otaku Douryou to Gisou Kekkon shita Kekka, Mainichi ga Meccha Tanoshiin dakedo!
- Otaku no Video
- Otakuouji to Akiba de Koi wo
- Otenki sentai How Weather
- Otherside Picnic (Ura Sekai Picnic)
- Otoca Doll
- Otodoke Kareshi
- Otoge ni Trip shita Ore
- OTOGI FRONTIER
- Otogi no Uta
- Otogi Story Tenshi no Shippo (Angel Tales)
- Otogizoushi (Otogi Zoshi: The Legend of Magatama)
- Otoko no Ko wa Maid Fuku ga Osuki!?
- Otoko Yukaku
- Otokogiraina Bijin Shimai wo Namae mo Tsugezu ni Tasuketara Ittai Do naru?
- Otomari Honey
- Otome Bare
- Otome Domain
- Otome ga Irodoru Koi no Essence
- Otome ga Musubu Tsukiyo no Kirameki
- Otome Game no Hametsu Flag shika Nai Akuyaku Reijou ni Tensei shiteshimatta... (My Next Life as a Villainess: All Routes Lead to Doom!)
- Otome Game Sekai wa Mob ni Kibishii Sekai desu (Trapped in a Dating Sim)
- Otome Ken Musashi
- Otome no Teikoku
- Otome Riron to Sono Shuuhen -Ecole de Paris-
- Otome wa boku ni koi shiteru
- Otome Yokai Zakuro
- Otome Yusha
- OTOMEDIA
- OTOMEDIUS
- Otomeito Heroine Collection
- Otomeito Magazine
- Otomen
- Otometeki Koi Kakumei Love Revo!!
- Otona no Bouguyasan
- Otona no MOEOH
- Otona no Natsuyasumi series
- Otona wo Komaraseru n ja Arimasen!
- Otonari ni Ginga (A Galaxy Next Door)
- Otonari no Tenshi-sama ni Itsunomanika Dame Ningen ni Sareteita Ken (She Is the Neighbor Angel, I Am Spoilt By Her)
- OTOPPE
- Otori Danshi
- Otorimonogatari
- Otouto no Kao Shite Warau no wa Mou, Yameru
- Otouto no Otto (My Brother's Husband)
- Otoyomegatari
- Otsukare Circus
- Otsukiai no Katachi
- Ou no Kemono
- Ouchi ni Kaeru made ga Mashimaro desu
- Ougon Narumono, Ten yori Ochi
- Ougon wo Daite Tobe
- Ouji-sama no Proposal (Be My Princess)
- Oujisama (warai) Series
- Oujisama Lv1
- Ouka Sabaki
- Oumaga Toki Doubutsuen
- Oumagatoki ~Kakuriyo no Enishi~
- Our House Love Trouble
- Our Two Bedroom Story
- Ouran High School Host Club
- Ouritsu Mahou Gakuen no Saikasei
- Ouritsu Ouji Gakuen
- Ousama no Propose (King's Proposal)
- Ousama Sentai King-Ohger
- Oushitsu Kyoushi Haine (The Royal Tutor)
- Outbreak Company
- Outen no Mon
- Outlaw Star
- Over Image
- Overlord
- Overman King Gainer
- Overwatch
- Owari no Chronicle
- Owari no Seraph (Seraph of the End)
- Owarimonogatari
- Owarinaki Natsu, Towa Naru Shirabe
- Owaru Sekai to Birthday
- Oyajina!
- Oyako Club
- Oyasai Yousei Series
- Oyasumi Karasu mata kitene.
- Oyasumi Punpun (Goodnight Punpun)
- Oyasumi, Itoshii Kotori-sama
- Oyayubi kara Romance (The Magic Touch)
- OZ
- Oz to Himitsu no Ai
- OZMAFIA!!
Featured Anime
